NPM Packages and Monorepos

Explore how to create a public npm package by configuring package.json with name, version 1.0.0, main file, author, MIT license, and keywords, and decide on public versus private settings.

Configure ESLint, Prettier, and TypeScript in a project, initialize configs, add a TypeScript parser, extend recommended rules, and set up a Prettier config with semicolons, single quotes, and trailing commas.

Configure TypeScript with tsconfig.json, setting target ES5 and module as commonjs, enable declaration files, and output to a built folder while enforcing strict checks and consistent casing.

Configure the package.json to publish only the build folder, include needed files, and set scripts for type checks, tests, and coverage; add pre-commit and pre-push hooks.

Implement a base conversion from bases greater than 10 to decimal, map digits a to f to numbers, add a letters-to-numbers utility, and refine tests to cover all cases.

Implement a decimal-to-base conversion method with tests, build a utils inverse object to swap keys and values, map remainders to digits or letters, and achieve full test coverage.

Extend a base-to-decimal converter to handle decimal parts, using a delimiter, processing fractional digits with negative powers, and validating with tests.

Explore validations in npm packages by modeling tests and errors for inputs, ensuring strings are used for base conversions, and handling issues like invalid numbers and multiple delimiters.

Learn to validate integers and decimal numbers in a base conversion utility, enforce integer bases and positions, and achieve 100 percent test coverage through focused unit tests.

Learn to implement a base-to-base convert method in TypeScript with tests-first development, converting through decimal and supporting precision via a convert options interface.

Explore TypeDoc workflows for TypeScript projects, learn to document functions and classes with comments, configure a TypeDoc JSON, set entry points and exclusions, and build and serve interactive API docs.

Create an npm account, enable two-factor authentication, and log in with npm login in the terminal using your username, password, email, and one-time password.

Publish your npm package and verify built-in TypeScript declarations, zero dependencies, and versioning, then test the converter in a playground before automating deployment.

Install and test a local npm package by running npm install in an empty directory, verify only the built folder is included via package.json, and run a quick converter example.

Automate your npm workflow with GitHub actions to build, test, and deploy code via pull requests, enabling continuous integration and deployment, while installing dependencies from the lockfile and running tests.

Add badges to your readme and showcase deployment status, donations, and documentation by using a GitHub action workflow to publish to the npm registry.

Explore the advantages and disadvantages of monorepos, including centralized ownership, easier onboarding, and global feature refactors, contrasted with access control, performance, and build-time challenges.

Create organizations in npm and GitHub to group packages, set public or private access, invite collaborators, and understand free tier limits like five hundred megabytes of packages and repositories.

Set up a basic express app with npm init and install express, create a get / route, then dockerize using a Dockerfile and Docker Compose mapping port 80 to 88.

Learn how changes in a subpackage update the root monorepo by tracing commit hashes, as edits in an express service alter the referenced commit without changing the root code.

In this wrap-up, the speaker argues that monorepos with isolated services and dockerized components improve access control, reduce git noise, and streamline cross-repo refactoring.

Learn to implement npm packages with best practices, read documentation, and manage multiple language versions using asdf. Explore monorepos and their drawbacks, plus practical collaboration approaches.